Nation's Most Sprawling Metro Area

"The Riverside-San Bernardino metropolitan area ranked first in the study of 83 metropolitan areas conducted by Smart Growth America. Next is the Greensboro, Winston-Salem, High Point area in North Carolina, followed by Raleigh-Durham, N.C. Another southern metropolis – Atlanta – is the hub of the fourth most sprawling area...More sprawling metro areas tend to have more fatal traffic accidents and worse pollution, in large part because people need to drive to go to work and to run errands, the report said. Mass transit is limited in most of these areas, the report said."